Aluminium alloy



Patented Aug. 24, 1937 a 2 90 3 5 V UNITED- STATES PATENT oFi-" cE' [AL email-Loy Yonosuke ll iatuenafrpgaka-hu, Yokohama,

No Drawing. Application May 8, 1936, Serial No.

18,723. In Japan May 13, 1935 1 Claim. (01. 75-147) This invention relates to an aluminium alloy It will ,be seen from the above example, the new consisting of 2 to 5% magnesium, 6 to 14% zinc, alloy has a very great tensile strength and. a very 0.2 to 2.0% nickel, 0.01 to 1.5% iron, 01 to 1.0% great elongation which are hardly obtainable in silicon and the remainder aluminium, the conknown aluminium alloys. 1 tent of silicon. being always greater than that of As to mutual actionof the elements of the new 5 iron. The new alloy may also contain a trace to alloy, it is supposed as follows. A part of mag- 1.5% manganese, and also a small quantity of conesium may combine with silicon to form magnebalt, molybdenum, vanadium, tungsten, titanium, .sium silicide, 'and another part of magnesium lithium, and beryllium without appreciable change may be alloyed with a part of zinc andja part of 10 in the nature. The object of the invention is to aluminium to form various three elemental alloys 10 obtain an aluminium alloy which has a great of diiferent percentage. Furthernickel. may be tensile strength and great elongation especially alloyed with These chemical wmpmmds when subjected under heat treatment. and alloys may crystal out in the mam eiement Example of the alloy showing percentages o viz., aluminium and maybe unilormly distributed I 15 the elements employed and. also' tensile strength F Further when manganes? q 15 and elongation when the'alloys are subjectedunnus mang'nese only act's as reducing agent der a mode of tempering and annealing are given but alsqhmders gmwth particles of i as follows: manganese-aluminium alloys and also of nickeliron alloyso that the distribution of the alloy Mg 3-0 maybe promoted. I 20 Zn 9.0 9-0 What I claim is: Ni 0.5 .0 An aluminium alloy consisting of 2 to 5% mag- F 0.3 0.3 'nesium, 6-t0 14% zinc, 0.2 t0'2.0% nickel, 0.01 to Si 0.8 I 0-8, 0.5% iron, 0.1 to 1.0% silicon and the remainder A1 Remainder Remainder aluminium, the contentof silicon being always as Tensile S ngth k -l m 59 greater than that or iron.

Elongation 1a 11 h YONOSUKEMATUENAGA. 

